What is the “Federal Lookback Period?
The IRS and state agencies require payroll tax deposits on a quarterly, monthly, semi-weekly basis depending upon how much your total payroll was during a 12-month period defined as the “Lookback Period.” The dates of the Lookback Period are determined by the time of year you are applying for service. To learn more, see Publication 15 “Circular E, Employer’s Tax Guide” published by the IRS.